ARIN registry — WHOIS, browse & statistics
A daily mirror of ARIN's public delegated registry (North America). Look up a resource, browse every object, or find a company's resources by name.
Single-resource lookup in ARIN’s delegated registry, enriched live from ARIN RDAP.
// what ARIN has delegated
ARIN registry at a glance
🌐
Assigned IPv4 addresses
1.64B
1,644,546,048
📦
IPv4 networks
77,308
delegated blocks
🧭
IPv6 networks
11,579
delegated blocks
🔗
Autonomous systems
34,292
ASNs
// browse the objects
Browse the ARIN registry
| AS | Country | Status | Allocated | Org handle |
|---|---|---|---|---|
| AS521 |  US |
assigned | 1989-09-22 | ce4419bfa21e… |
| AS520 | US |
assigned | 1989-09-19 | dde503ba46d2… |
| AS541 | US |
assigned | 1989-09-19 | 91d3920e4c54… |
| AS519 | US |
assigned | 1989-09-14 | ba7100eeb913… |
| AS518 | US |
assigned | 1989-09-08 | 45fe880b68a8… |
| AS516 | US |
assigned | 1989-09-06 | 4a1b73c211c3… |
| AS514 | US |
assigned | 1989-08-31 | 45fe880b68a8… |
| AS515 | US |
assigned | 1989-08-31 | 45fe880b68a8… |
| AS512 | US |
assigned | 1989-08-23 | 45fe880b68a8… |
| AS509 | US |
assigned | 1989-08-07 | 45fe880b68a8… |
| AS379–AS508 | US |
assigned | 1989-08-04 | bdf44844ab2d… |
| AS377 | US |
assigned | 1989-08-01 | 20cd1178e946… |
| AS376 |  CA |
assigned | 1989-07-27 | 44bca3813bb1… |
| AS374 | US |
assigned | 1989-07-18 | bdf44844ab2d… |
| AS373 | US |
assigned | 1989-07-13 | e46d50b27c27… |
| AS372 | US |
assigned | 1989-07-10 | 2d90cbf4f78e… |
| AS306–AS371 | US |
assigned | 1989-06-30 | 45fe880b68a8… |
| AS304 | US |
assigned | 1989-06-27 | 2784ce9dbeb2… |
| AS305 | US |
assigned | 1989-06-27 | c096bf755fee… |
| AS303 | US |
assigned | 1989-06-26 | 45fe880b68a8… |
| AS302 | US |
assigned | 1989-06-23 | 28bef9cf7e9c… |
| AS301 | US |
assigned | 1989-06-21 | bdf44844ab2d… |
| AS299 | US |
assigned | 1989-06-15 | 6be5ed29148a… |
| AS300 | US |
assigned | 1989-06-15 | 45fe880b68a8… |
| AS298 | US |
assigned | 1989-06-14 | bdf44844ab2d… |
| AS297 | US |
assigned | 1989-06-09 | 2d90cbf4f78e… |
| AS296 | US |
assigned | 1989-06-08 | bdf44844ab2d… |
| AS295 | US |
assigned | 1989-06-07 | 45fe880b68a8… |
| AS289 | US |
assigned | 1989-06-02 | c096bf755fee… |
| AS287 | US |
assigned | 1989-05-17 | a181bfc17354… |
| AS284 | US |
assigned | 1989-05-11 | e220ed812a4c… |
| AS285 | US |
assigned | 1989-05-11 | c096bf755fee… |
| AS277 | US |
assigned | 1989-03-31 | 161fb0fc33bc… |
| AS274 | US |
assigned | 1989-03-10 | 0a40e3c91a3a… |
| AS273 | US |
assigned | 1989-03-03 | 45fe880b68a8… |
| AS272 | US |
assigned | 1989-02-27 | c096bf755fee… |
| AS270 | US |
assigned | 1989-02-24 | 2d90cbf4f78e… |
| AS271 | CA |
assigned | 1989-02-24 | b764959acfe6… |
| AS269 | US |
assigned | 1989-02-22 | ba8b2f170895… |
| AS268 | US |
assigned | 1989-02-09 | 3318dff48218… |
| AS265 | US |
assigned | 1989-02-01 | 365056bf5a8e… |
| AS264 | US |
assigned | 1989-01-23 | 2784ce9dbeb2… |
| AS259 | US |
assigned | 1989-01-04 | a5763201be5e… |
| AS260 | US |
assigned | 1989-01-04 | a7f7463af3d3… |
| AS258 | US |
assigned | 1988-12-23 | c096bf755fee… |
| AS257 | US |
assigned | 1988-12-22 | a181bfc17354… |
| AS256 | US |
assigned | 1988-12-09 | a181bfc17354… |
| AS255 | US |
assigned | 1988-11-28 | bdf44844ab2d… |
| AS254 | US |
assigned | 1988-11-11 | 5f6095e5c918… |
| AS252 | US |
assigned | 1988-11-02 | c096bf755fee… |
| AS246 | US |
assigned | 1988-10-27 | bdf44844ab2d… |
| AS247 | US |
assigned | 1988-10-27 | aa12542fe052… |
| AS245 | US |
assigned | 1988-10-21 | e01a919b0684… |
| AS227 | US |
assigned | 1988-10-07 | c096bf755fee… |
| AS244 | US |
assigned | 1988-10-05 | 45fe880b68a8… |
| AS243 | US |
assigned | 1988-10-04 | 6af3dbdad10c… |
| AS242 | US |
assigned | 1988-10-03 | 1c22483876f4… |
| AS240 | US |
assigned | 1988-09-22 | bdf44844ab2d… |
| AS241 | US |
assigned | 1988-09-22 | bdf44844ab2d… |
| AS239 | CA |
assigned | 1988-09-20 | ab0b04510ace… |
| AS229 | US |
assigned | 1988-09-12 | 7d6edd7066f0… |
| AS230 | US |
assigned | 1988-09-12 | 7d6edd7066f0… |
| AS233 | US |
assigned | 1988-09-12 | 7d6edd7066f0… |
| AS235 | US |
assigned | 1988-09-12 | 7d6edd7066f0… |
| AS236 | US |
assigned | 1988-09-12 | 7d6edd7066f0… |
| AS237 | US |
assigned | 1988-09-12 | 7d6edd7066f0… |
| AS238 | US |
assigned | 1988-09-12 | 7d6edd7066f0… |
| AS228 | US |
assigned | 1988-09-08 | 45fe880b68a8… |
| AS226 | US |
assigned | 1988-09-01 | bbdb6077350f… |
| AS225 | US |
assigned | 1988-08-31 | 8c78747c6d11… |
| AS223 | US |
assigned | 1988-08-15 | c9664fe58e8a… |
| AS220 | US |
assigned | 1988-08-12 | bdf44844ab2d… |
| AS221 | US |
assigned | 1988-08-12 | bdf44844ab2d… |
| AS222 | US |
assigned | 1988-08-12 | bdf44844ab2d… |
| AS219 | US |
assigned | 1988-08-09 | a181bfc17354… |
| AS218 | US |
assigned | 1988-07-29 | bdf44844ab2d… |
| AS217 | US |
assigned | 1988-07-25 | 252351fbc17c… |
| AS216 | US |
assigned | 1988-07-18 | bdf44844ab2d… |
| AS215 | US |
assigned | 1988-07-13 | c096bf755fee… |
| AS214 | US |
assigned | 1988-07-12 | a181bfc17354… |
| AS213 | US |
assigned | 1988-07-11 | c096bf755fee… |
| AS211 | US |
assigned | 1988-07-07 | aa12542fe052… |
| AS207 | US |
assigned | 1988-06-22 | ccce0eb99aaa… |
| AS208 | US |
assigned | 1988-06-22 | a181bfc17354… |
| AS204 | US |
assigned | 1988-06-15 | 1fd660ca4c6c… |
| AS205 | US |
assigned | 1988-06-15 | a32805a54cca… |
| AS198 | US |
assigned | 1988-06-02 | 45fe880b68a8… |
| AS196 | US |
assigned | 1988-05-27 | e1ed1885c9ce… |
| AS194 | US |
assigned | 1988-05-26 | f29e934ef81a… |
| AS195 | US |
assigned | 1988-05-26 | abca6759f071… |
| AS192 | US |
assigned | 1988-05-20 | 4893e8e9b3ed… |
| AS191 | US |
assigned | 1988-05-18 | a181bfc17354… |
| AS190 | US |
assigned | 1988-05-17 | a181bfc17354… |
| AS188 | US |
assigned | 1988-05-09 | 6e7fadb2942b… |
| AS186 | US |
assigned | 1988-05-02 | 240c6b1ea4b5… |
| AS177 | US |
assigned | 1988-04-28 | 444a75b49e4b… |
| AS178 | US |
assigned | 1988-04-28 | 444a75b49e4b… |
| AS179 | US |
assigned | 1988-04-28 | 444a75b49e4b… |
| AS180 | US |
assigned | 1988-04-28 | 444a75b49e4b… |
| AS181 | US |
assigned | 1988-04-28 | 7d6edd7066f0… |